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Strain difference

Posted: Sun Mar 19, 2017 5:45 am
by Kevin Chang 2I
In a conformation, how can one distinguish torsional strain from steric strain?

Re: Strain difference

Posted: Sun Mar 19, 2017 9:28 am
by Kiara Quinn 3B
Torsional Strain is a force that opposes rotation of a part of a molecule about a bond whereas steric strain occurs when there is a non bonded interaction that is too close together. For example, in the boat conformation, there would be a lot of steric strain due to the flagpole interactions. Torsional strain is often caused by the eclipsed hydrogens (pg 108 of the course reader). Hope this helps!